12 Rocket Stove Mass Heaters - Efficient Wood Heat




What do you think about this video?

Bill Wrin: It seems to be that the area you are calling the combustion chamber would be better described as the heat exchanger. From the illustrations on Richsoil.com the burning is done by the time it gets there.

888mrshoe: most people tell you they have a wood burner and they are not lying it burns wood and sends the heat up the stack, do they know their flue gas temp , most rocket stove are below condensing temp unless been alight for 8 hours or more hence the steam from flue without a computer controlling it ,or electricity if you have one don't tell anyone because your fuel source will be consumed by somebody that lives near you ive had one for three years an they don't work , but they sent someone from smart meter people to find out why I wasn't using piped gas and only electricity, I pay the rental for gas in case I need it

JJ west: just asking ; why not just put in a fireplace ? seems to me it would be easier .

Francois Couturier: Are any of these build were it is actually cold like - 40, I don't think so....It's usually built in desert area , I think on dirt floor no wood floor . I 've been posting comments like this on may be 30 youtube channel and no one ever respond so i think it is probably true what i'm saying ...Or they say ... no it true but they live in apartment building ...

darryl barton: Thank you for the diagram. It really helps explain the concept.

Jacob Zolt: Rocket-mass-heaters: Efficient wood heat 12 rocket stove mass heaters - efficient wood heat 

Christy Nulty: Has any one built one of these

RichieRench: Does any one know how hot the base of the combustion chamber gets? I am thinking of building one in my home but my floor is wood over a craw space. All the photos and videos I can find the RMH's are build over dirt or stone.

Leigh Blackall: AH.. good point on the draw.. I have been in touch with Erica and Ernie, they are planning a workshop in Portland August 14. Not sure, but I think we'll miss that by a few days... hope you can arrange a build perhaps the next weekend after that? We'll be over from NZ, so keen as.

virus256: hehe. I will give you credits for the Hobbits comment. :p

paul wheaton: @peetrwilson cobville - i have some more videos of cobville - click on my username

vention4wh: Oh my god that's SO friggen cool!!! I just paid off my condo so now I'm going to start saving for some rural property where I can build something like this (or incorporate it into an existing structure).

Roy Emerson: Agreed. My RMH boiler produces about 1/2 a soup can of ash for every 5g bucket full of fuel, usually hardwood from my woodshed.

SoutharnBling: If I purchase the book on how to create this type of heating system, is it easy to build? I have limited experience but think I could do it with trial and error. I do plan to take a cobb course next year and get ready to experience life.

thesuperfan99: So was this filmed in Hobbiton?

EugeneMarks: @gorgeousdzastr Great question, and was my FIRST question.. They saying is “a good hat and boots”.. Meaning In other words, a cob house needs a good roof with wide eves and the bottom of a cob wall must sit on a non-absorbent stem wall so that it cannot wick moisture up from the ground.. Cob is very porous and can absorb a tremendous amount of water without softening.

andypdq: I'd love to see one of these made by an engineer, efficient, smoke tube boiler , aka locomotive steam engines, heating water so it could be pumped round the rest of the house for central heating. External balanced flue air feed, not drawing warm air from inside the house.This is a great idea for efficient combustion, but it could and should be taken much further with a more scientific aproach. No offence intended to those who have aided progress thus far

TheBoydTV: Very nice. Paul, are there any videos showing Rumford style fireplaces? I suppose they use more wood, but might project heat better. I'm thinking about how a hybrid rocket stove heater with radiator-like projection would be the best of both worlds...

gorgeousdzastr: How do they build those houses?

abayer1000: I have a russian stove in my basement and a finnish fireplace in my great room they work great and work on the same prinicipal as a rocket stove, But I will say a russian stove and a finnish fireplace are not cheap or easy to build both would take a skilled masnon with much firebrick experence. I live in the rust belt in western Pa. I burn about a weel barrow of wood a day I rarely burn both.

paul wheaton: For the ones in this video, the barrel can be replaced in about 20 minutes. Spray lots of water on the cob, the cob turns mushy, pull out the old and put in the new. Of course, I have yet to hear of a barrel wearing out yet - unlike some other stoves that use barrels.

paul wheaton: @toddweller we have huge discussions on rmh variations at permies.com

NuG919: doesn't the barrel get very hot? i always see pillows and such in close proximity to the barrel

Todd Weller: This is very cool! I'll have to think of a way to incorporate a RMH into our house! It seems like a design consideration might be to slant the "feed" to reduce the amount of attention that need to be paid the fuel. Your thoughts?

fedaikn: just a idea .....one may choose to create a better heat exchange for the barrel by adding sheet metal chicanes to the outside of the heat riser. the chicanes would sit in the space between the barrel interior and the heat risers exterior, directing the hot gases into certain directions.

thetootightmike: Next time you make a video...call ahead and give folks time to tidy up.

ArgosRho: It burns clean(er), natural gas is harder to come by, not easily obtainable by the average man, and requires drilling. Yes it requires a clean out, depending on use this can vary from once a year to once every few years.

paul wheaton: @keeperoftherealm check the article at richsoil - e have a diagram

Roy Emerson: Also, Paul, after the fire is established, all I get is water vapor, and the flue temp has yet to exceed 90 degrees Fahrenheit.

przypadkowyObywatel: as you are removing. ash after burning wood? sorry for my bad english.I do not understand where is the ash from wood?

breckandy: Cute but what to do with soot, carbon monixide and smell like smoke all the time

Brenda Hodgins: so nice to see existing heaters. and I really like the idea of the feed being separated by a wall!

gorgeousdzastr: @EugeneMarks I suppose a good heavy exterior paint job would help a lot too. thanks

Cstrife234: @paulwheaton12 The koreans use a wood burning stove that pipes the heat through the floorboards via stones or water pipes. It'd be cool to do that. Instead of a mass have water pipes or stones under floorboards piped to the heater.

elhnad elhnady: does youtube give you money for all these hits? is it sufficient for your type of lifestyle? these are great vids and tools for ppl

apples13able: It seems like a big outdoor JTube rocket stove to me, but I think I see what you are trying to do. With a wood gasifier there is an external air pump of some sort, either an actual fan or the vacuum suction of the engine. Anyway, it would be a good experiment to try, even with a simple L tube cooking rocket stove... I know that when I blow air into the feed tube of my minikeg cook stove it turns it into a forge. Would be interesting to weld some air pipes just above combust chamber angled up..

Joel Warren: I have a rocket mass heater up and running, you can view it here. I have seen some of your instuctional videos. I wondered what you are using for a finish on the dried cob?

Forex: Where the heck is this place? Everything looks kinda low end building material.

ArgosRho: @paulwheaton12 I have to ask what the fullest extent of the size of this heating system can be. I have plans in the works for a formworks home (formworksbuilding. com). Which uses a very thermally sound design based on dome and arches. My biggest concern here is that the entire outer shell is made of stone(concrete), meaning it takes a bit to heat up but holds heat for a *long* time. The general design is to build UP and not out, so we're thinking three stories including a basement.

Oakheart: What sort of climate zone do you live in?

saxz99: nose whistle

TheProfKent Kent: these sound great but i've been watching vids on here for a couple weeks but i still can't determine how big it needs to be to heat our 500sq ft cabin. i dont wanna cook the wife and i deff dont wanna freeze the baby lol. anyone have any suggestions?

express375: Do you have to clean the ash out?

ben dunn: How long do the barrels last? I would think that the top would burn through fairly quickly

Ó Slatraigh: All of that goes through the duct work and out the exhaust, just like a car or a chimney, except this usually has the duct go through a mass and out the outside wall.

tappakeggaday1: not telling you what to do,just a suggestion.wood is renewable but it takes a long time to grow.I seen from your videos you have a lot of trees in the area but have you considered getting a pelleting machine to turn the abundant leaf source you have there into leaf pellets to burn in the winter?you wouldn't have to worry about adding some binder to it as i understand that plant matter has this chemical called lignin that holds it together like glue once it is heated in the pellet machine.

paul wheaton: Russian stoves are about 4 to 5 times more efficient than a conventional wood stove. Rocket mass heaters tend to be twice as efficient as russian stoves. Cleaner too.

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